CN205999953U - Rake teeth group for drag head - Google Patents
Rake teeth group for drag head Download PDFInfo
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- CN205999953U CN205999953U CN201621023550.6U CN201621023550U CN205999953U CN 205999953 U CN205999953 U CN 205999953U CN 201621023550 U CN201621023550 U CN 201621023550U CN 205999953 U CN205999953 U CN 205999953U
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- rake teeth
- drag head
- transition part
- rake
- head
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Abstract
The rake teeth group that this utility model is used for drag head is related to a kind of dredging work equipment.Its purpose is to provide and a kind of can strengthen the ability of breaking ground, improve the rake teeth group for drag head of the yield dredging closely knit fine sand.The rake teeth group that this utility model is used for drag head includes some groups of rake teeths being arranged on the bottom of main drag head, rake teeth is wedge shaped, including head, transition part and root, wherein head includes main work surface and the subtask face that angle is obtuse angle, main work surface is located inside rake teeth, it is connected with the inwall of transition part, the inwall of transition part is the cambered surface of outside lateral bend, the outer wall auxiliary connection work surface of transition part, the outer wall of transition part is divided into two sections, wherein be directly connected to subtask face for tapered plane, it is the arc-plane of inside lateral bend above tapered plane, the root of rake teeth is machined with mounting groove.
Description
Technical field
This utility model is related to a kind of dredging work equipment, more particularly to a kind of rake teeth group for drag head.
Background technology
The working method of trailing suction hopper dredger is to navigate by water while dredging at present, respectively installs a drag head in the both sides of ship.
During dredger navigation, drive drag head to move forward, soil is excavated under water by drag head, then by the suction of dredge pump, along mud
Pipe sucks spoil hopper mud, resails and carry out throwing mud to mud dumping area domain after cabin is full.Existing rake teeth is divided into several types, such as point
Tooth, flat tooth (chisel tooth, plate tooth) and vomerine tooth are several, and above-mentioned several rake teeths respectively have pluses and minuses.Pointed tooth is used for destroying hard substrate, rake teeth
Lifting surface area little it is easy to bury but the amount of breaking ground is little；Flat tooth is used for excavating the not high substrate of the densities such as loose sand, coarse sand, such as uses this
Rake teeth excavates the larger clay of viscosity, then its cutting edge should be narrow as far as possible, can improve, using wide tooth, the amount of breaking ground；Vomerine tooth has and breaks ground
Sharp knife and the curved surface digged, in order to excavate harder cohesive soil, but its anti-wear performance is poor.As can be seen here, variously-shaped
Rake teeth all there is a problem of certain, and need now the rake teeth of a kind of performance balance and high working efficiency to be applied to harrow suction and dredge
In ship.
Utility model content
The technical problems to be solved in the utility model is to provide one kind can strengthen the ability of breaking ground, improve and dredge closely knit fine sand
Yield the rake teeth group for drag head.
This utility model is used for the rake teeth group of drag head, and including some groups of rake teeths of the bottom being arranged on main drag head, rake teeth is in
Wedge shape, including head, transition part and root, wherein head includes main work surface and the subtask face that angle is obtuse angle, main work
Face is located inside rake teeth, is connected with the inwall of transition part, the inwall of transition part is the cambered surface of outside lateral bend, the outer wall of transition part
Auxiliary connection work surface, the outer wall of transition part is divided into two sections, be wherein directly connected to subtask face for tapered plane, above tapered plane
It is the arc-plane of inside lateral bend, the root of rake teeth is machined with mounting groove.
This utility model is used for the rake teeth group of drag head, and wherein said rake teeth group includes front-seat rake teeth and heel row rake teeth, front-seat
Rake teeth and heel row rake teeth are located at middle part and rear portion on the downside of main drag head respectively.
This utility model is used for the rake teeth group of drag head, and wherein said rake teeth is identical with the angle of horizontal plane, and described angle is
30 °～60 °.
The rake teeth group difference from prior art that this utility model is used for drag head is that this utility model is used for drag head
Rake teeth group improves on the basis of existing drag head, using wedge type rake teeth.The overall structure of rake teeth has been divided into head, transition part
And root, wherein head is used for cutting and breaks ground, and has main work surface and subtask face, two face collective effects, has good
Cutting and effect of breaking ground.Transition part is mainly made up of variform inner and outer wall, and its inwall is the arc of outside lateral bend
Face, globoidal structure can increase excavating depth in order to rake teeth, can store more soil simultaneously, prevent soil mistake inside rake teeth
The follow-up work of many obstructions.The outer wall auxiliary connection work surface of transition part, the outer wall of transition part is divided into two sections, wherein straight with subtask face
Connect in succession for tapered plane, tapered plane can be that the arc of inside lateral bend is put down above tapered plane in order to the quick discharge of soil
Face, is easy to process and installs.The root of rake teeth is then used for being connected with main drag head.This utility model is used for the rake teeth group of drag head in work
Can fully break ground when making, so that soil is mixed with water and siphoned away by dredging tube, be more conducive to dredge the surface of closely knit fine sand, effectively improve product
Amount, manufactures easy to use, easy popularization simultaneously.
Below in conjunction with the accompanying drawings the rake teeth group for drag head of the present utility model is described further.
Brief description
Fig. 1 is used for the front view of the rake teeth group use state of drag head for this utility model；
Fig. 2 is used for the top view of the rake teeth group use state of drag head for this utility model；
Fig. 3 is used for the upward view of the rake teeth group use state of drag head for this utility model；
Fig. 4 is used for the axonometric chart of the rake teeth group use state of drag head for this utility model；
Fig. 5 is used for the axonometric chart at rake teeth upper right visual angle in the rake teeth group of drag head for this utility model；
Fig. 6 is used for the axonometric chart at rake teeth lower-left visual angle in the rake teeth group of drag head for this utility model；
The axonometric chart at the lower-left visual angle of the rake arms that the rake teeth group that Fig. 7 is used for drag head for this utility model uses cooperatively；
The axonometric chart at the upper right visual angle of the rake arms that the rake teeth group that Fig. 8 is used for drag head for this utility model uses cooperatively.
Specific embodiment
As shown in figures 3 to 6, this utility model is used for the rake teeth group of drag head, including being arranged on some of main drag head 1 bottom
Group rake teeth.The global shape of rake teeth is wedge shaped, and including head, transition part and root, wherein head includes the master that angle is obtuse angle
Work surface 32 and subtask face 31, main work surface 32 and subtask face 31 are used for cutting soil.Main work surface 32 is located inside rake teeth, with
The inwall of transition part 33 is connected.The inwall of transition part 33 is the cambered surface of outside lateral bend, and globoidal structure can increase in order to rake teeth
Excavating depth, can store more soil inside rake teeth simultaneously, prevent soil from excessively hindering follow-up work.Outside transition part 33
Wall auxiliary connection work surface 31, the outer wall of transition part 33 is divided into two sections, be wherein directly connected to subtask face for tapered plane 36, tiltedly
Plane 36 can be the arc-plane 35 of inside lateral bend above tapered plane 36 in order to the quick discharge of soil, be easy to processing and
Install.The root 34 of rake teeth is machined with mounting groove, for the connection of rake teeth and main drag head 1.Rake teeth group include front-seat rake teeth 3 and after
Row's rake teeth 5, front-seat rake teeth 3 and heel row rake teeth 5 are located at middle part and rear portion, front-seat rake teeth 3 and the heel row of main drag head 1 downside respectively
The angle of inclination of rake teeth 5 is identical with the shower nozzle on main drag head 1.
As shown in Fig. 1-4, Fig. 7 and Fig. 8, drag head mechanism includes main drag head 1, and main drag head 1 is rotatably supported in rake arms 18 rear portion
Rotating shaft 42 on, rake arms 18 rear portion is provided with the protective cover 43 matching with main drag head 1 external surface shape, and protective cover 43 plays guarantor
Protect the effect of main drag head 1, prevent main drag head 1 from having impurity to enter to become owner of inside drag head 1 and rake arms 18 in rotation process simultaneously.Rake arms
18 agent structure is welded by multi-sheets, and processing is simple and has higher intensity.During rake arms 18 is internally provided with
Cavity body 46, hollow cavity 46 is externally connected to dredge pump in rake arms 18, for extracting mud.Rake arms 18 is near main drag head 1 side
Offer row's mud-suction hole 41, mud-suction hole 41 is connected with the hollow cavity 46 in rake arms 18.The front end of rake arms 18 is machined with even
Connect hole 45, connecting hole 45 is used for connecting the pipeline transporting soil.Support base 17 is installed above rake arms 18, fixing on support base 17
There is front hydraulic cylinder fixed seat 15 and enter water manifold 14.
As depicted in figs. 1 and 2, the water inlet entering water manifold 14 connects high-pressure flush pipeline 16, in high-pressure flush pipeline 16
Full of water under high pressure, each outlet entering water manifold 14 connects each delivery hose respectively it is ensured that water under high pressure is evenly distributed to each water outlet
In flexible pipe.Hydraulic cylinder 13 is rotatablely equipped with front hydraulic cylinder fixed seat 15, hydraulic cylinder 13 front end is rotated with hydraulic cylinders bearing and is connected,
Hydraulic cylinders bearing is fixed in rear hydraulic cylinder fixed seat 10, and rear hydraulic cylinder fixed seat 10 is arranged on main drag head 1.Front hydraulic cylinder is solid
Reservation 15 and rear hydraulic cylinder fixed seat 10 can be in order to the dismounting of hydraulic cylinder 13 and replacings.When hydraulic cylinder 13 stretches, front hydraulic pressure
Cylinder fixed seat 15 maintains static, and rear hydraulic cylinder fixed seat 10 drives main drag head 1 to rotate, based on drag head 1 provide power.
As shown in Figure 3 and Figure 4, delivery hose includes front water hose 12 and rear water hose 11, wherein rear water hose
11 are connected with the rear diversion cavity 7 being arranged on main drag head 1, and rear diversion cavity 7 is connected with multiple heel row high-pressure nozzles 6, heel row
High-pressure nozzle 6 along main drag head 1 length direction linear array main drag head 1 downside rear portion；Front water hose 12 is connected with peace
It is contained in the leading water chamber 8 on main drag head 1, leading water chamber 8 is connected with two water inlet pipes 21, water inlet pipe 21 lower end extend into master
On the downside of drag head 1, water inlet pipe 21 lower end is connected with a horizontal aqueduct 19 and three longitudinal aqueducts 20, horizontal aqueduct 19 He
Longitudinal aqueduct 20 communicates, and is staggered on the downside of main drag head 1.Multiple front rows high-pressure nozzle is laterally connected with aqueduct 19
4, longitudinal aqueduct 20 is respectively connected with multiple longitudinal high-pressure shower nozzles 2.Due to the restriction of locus, indulge for two positioned at both sides
7 longitudinal high-pressure shower nozzles 2 are respectively connected with aqueduct 20, and are located at and are connected with 8 longitudinal directions on longitudinal aqueduct 20 of centre
High-pressure nozzle 2.Heel row high-pressure nozzle 6, front-seat high-pressure nozzle 4 are identical with the angle that longitudinal high-pressure shower nozzle 2 forward downward tilts, with
Horizontal direction angle is 30 °～60 °.
Embodiment described above is only preferred implementation of the present utility model to be described, not to this practicality
New scope is defined, and on the premise of without departing from this utility model design spirit, those of ordinary skill in the art are to this
Various modifications and improvement that the technical scheme of utility model is made, all should fall into the protection of this utility model claims determination
In the range of.
Claims (3)
1. a kind of rake teeth group for drag head it is characterised in that：Including some groups of rake teeths of the bottom being arranged on main drag head, rake teeth
Wedge shaped, including head, transition part and root, wherein head includes main work surface and the subtask face that angle is obtuse angle, main work
Make face to be located inside rake teeth, be connected with the inwall of transition part, the inwall of transition part is the cambered surface of outside lateral bend, outside transition part
Wall auxiliary connection work surface, the outer wall of transition part is divided into two sections, be wherein directly connected to subtask face for tapered plane, on tapered plane
Side is the arc-plane of inside lateral bend, and the root of rake teeth is machined with mounting groove.
2. the rake teeth group for drag head according to claim 1 it is characterised in that：Described rake teeth group include front-seat rake teeth and
Heel row rake teeth, front-seat rake teeth and heel row rake teeth are located at middle part and the rear portion on the downside of main drag head respectively.
3. the rake teeth group for drag head according to claim 1 and 2 it is characterised in that：Described rake teeth and the folder of horizontal plane
Angle is identical, and described angle is 30 °～60 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621023550.6U CN205999953U (en) | 2016-08-31 | 2016-08-31 | Rake teeth group for drag head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621023550.6U CN205999953U (en) | 2016-08-31 | 2016-08-31 | Rake teeth group for drag head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205999953U true CN205999953U (en) | 2017-03-08 |
Family
ID=58194039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621023550.6U Active CN205999953U (en) | 2016-08-31 | 2016-08-31 | Rake teeth group for drag head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205999953U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108316376A (en) * | 2018-02-14 | 2018-07-24 | 中交天航港湾建设工程有限公司 | A kind of dredging drag head triangular edge tooth |
| CN109653273A (en) * | 2019-01-10 | 2019-04-19 | 中交上海航道局有限公司 | A kind of drag head structure of drag suction dredger |
-
2016
- 2016-08-31 CN CN201621023550.6U patent/CN205999953U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108316376A (en) * | 2018-02-14 | 2018-07-24 | 中交天航港湾建设工程有限公司 | A kind of dredging drag head triangular edge tooth |
| CN109653273A (en) * | 2019-01-10 | 2019-04-19 | 中交上海航道局有限公司 | A kind of drag head structure of drag suction dredger |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180517 Address after: 300042 Taierzhuang Road, Hexi District, Hexi District, Tianjin Co-patentee after: Cccc-TDC Yantai Environmental Protection Dredging Co., Ltd. Patentee after: CCCC Tianjin Dredging Co., Ltd. Address before: 264000 Huan Hai Road, Zhifu District, Yantai, Shandong Province, No. 80 Patentee before: Cccc-TDC Yantai Environmental Protection Dredging Co., Ltd. |